Update EmbeddableFrame.tsx

Author: zenoachtig

packages/gitbook/src/components/Embeddable/EmbeddableFrame.tsx

@@ -32,7 +32,10 @@ export function EmbeddableFrameMain(props: { children: React.ReactNode; 'data-te
     const { children, 'data-testid': dataTestId } = props;
 
     return (
-        <div className="flex flex-1 flex-col overflow-hidden" data-testid={dataTestId}>
+        <div
+            className="flex flex-1 flex-col overflow-hidden"
+            data-testid={dataTestId ?? 'embed-frame-main'}
+        >
             {children}
         </div>
     );